Patients with chronic kidney disease (CKD) who use bowel cleansing products should be aware of a recent warning issued by the FDA for a type of sudden loss of kidney function or acute kidney injury, as well as, blood mineral disturbances.
Cognitive Development: Age 2â6. Preschoolers provide remarkable examples of how children play an active role in their own cognitive development, especially in their attempts to understand, explain, organize, manipulate, construct, and predict.
Theories of Cognitive Development. Cognitive development refers to the change in childrenâs patterns of thinking as they grow older. Jean Piagetâs Stage Theory. The scientist best known for research on cognitive development is Jean Piaget (see pages 72â75), who proposed that childrenâs thinking goes through a set series of four major stages.